The vitamins, trace elements and amino acids present in our formula play an essential role in the synthesis of keratin - the protein that forms the basis of the hair fiber. The simultaneous action of the active ingredients of these supplements allows good hair growth, but also to improve its resistance, limit breakage, slow down hair loss and limit aging. Taking these supplements complements your treatment. Contains 99% of elements of natural origin. Instructions for use Taken orally, 2 times a day and preferably before a meal.